Technically it’s only the fifth circuit that’s decided that DV restraining orders don’t prohibit gun ownership so far, and the case is part of the current term for SCOTUS. My guess would be that SCOTUS will overrule the 5th circuit while still leaving the “historical analog” test from last year that was the basis of that decision in place, but that’s just an assumption on my part.
The context of the quoted section of the article is about what an acceptable false positive rate would be, not about what situations drunk driving would be acceptable.